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Finding the Fourth Proportional to 273,049.64, 409,574.46 and 106,721

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Solution

The fourth proportional to 273,049.64, 409,574.46 and 106,721 is: 160,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,049.64 : 409,574.46 = 106,721 : x
  2. Step 2: Convert to fraction form
    273,049.64/409,574.46 = 106,721/x
  3. Step 3: Cross multiply
    273,049.64x = 409,574.46 × 106,721
  4. Step 4: Simplify right side
    273,049.64x = 43,710,195,945.66
  5. Step 5: Solve for x
    x = 43,710,195,945.66/273,049.64
  6. Step 6: Final answer
    x = 160,081.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.